Classification
P - Language and Literature
76
E - United States History
74
D - World History
67
Q - Science
59
H - Social Science
45
T - Technology
30
J - Political Science
26
A - General Works
15
F - General American History
7
M - Music
7
B - Philosophy, Psychology, Religion
6
C - Historical Sciences
6
L - Education
6
Z - Library Science
3
S - Agriculture
2
U - Military Science
2
K - Law
1
N - Fine Arts
1